In deriving this constraint, we have assumed the absence of the finite number of three-point curvature couplings to matter that correct the action (REF ), including those enumerated in[1]}.
In the presence of these corrections, the analysis we present in this section must be generalized,A naive accounting of these terms suggests that they must all cancel against one another to give (REF ). In order to do so, the three-point couplings \(\gamma ^{s_1 ,s_2}_p\)  must all be \({\cal O}(1)\)  in dimensionless units, and therefore consistent with an effective field theoretic expectation of naturalness. yet must still ultimately yield a constraint that is solved by the Poincaré-consistent solution (REF ). We leave a systematic understanding of these corrections to future work.
